Shape don't have fill color but looks colored inside in specific layer

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Hi, for some reason my shapes are getting colored in green in 'layer 1', but when I use another layer, it gets fixed. As you can see in the color panel, both shapes are the same, only pink stroke. Does anybody know how to fix this? I'm in Illustrator btw

[Larry G. Schneider · Accepted solution]

Can you select Layer 1 and show the Appearance panel? The gray color in the circle at the right indicates something is applied to the layer.

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That was it! Thank you very much. 
I hadn't even noticed that the circle was full gray